Dividing rule



July 4, 1950 A Filed April 2, 1945 a H. Y. GILES DIVIDING RULE 2 Sheets-Sheet 1 HENRY Y G/LE5 INVENTOR.

BY%AMM H. Y. GILES DIVIDING RULE July 4, 1950 Filed April 2, 1945' HENRY if G/LES INVENTOR.

Patented July 4, 1950 UNITED STATES PATENT OFFICE DIVIDING RULE Henry Y. Giles, Portland, Oreg. Application April 2, 1945, Serial No. 586,171

7 Claims. y I This invention relates *toimprovementsin dividing rules and more particularly to a rule adapted to quickly, accurately and conveniently determine the width and length of panes of glass to be used'in a French window of a given width and length, a given thickness of sash surrounding the same.

It is one of the principal objects of the invention to provide a tool of this character by means of which a builder of a window consisting of a number of panes of glass throughout its width and length may determine the length and width of each individual pane of glass.

In order to determine the width of each pane of glass in the entire window, the entire width of the frame, including the width of the outside wood on both edges thereof, must be taken into consideration, for example, as shown in Figure 1 of the drawings, the width of the frame including the four lateral panes of glass is 48 inches and the length including the frame is 72 inches.

These and other objects will appear as my invention is more fully hereinafter described in the following specification, illustrated in the accompanying drawings and finally pointed out in the appended claims.

In the drawings:

Figure 1 is an elevation of a French window having four lateral divisions and. five longitudinal divisions.

Figure 2 is a perspective view of a dividing rule made in accordance with my invention.

Figure 3 is a, slightly enlarged sectional view taken along the line 3-3 of Figure 2.

Figure 4 is a plan view of a typical pane of.

glass used in the window shown in Figure 1.

Figure 5 is an enlarged fragmentary plan View of the rule shown in a position to calculate the sizes of panes to be used in windows having three or four divisions.

Figure 6 is a view similar to Figure 5 showing the rule in a position to calculate the sizes of panes in windows having 5 and 6 divisions.

Referring now more particularly to the drawmgs:

In Figure 1, reference numeral I indicates generally a French window having or being divided into four lengthwise rows of panes of glass with five panes in each row. In the window shown the width of the bars separating each pane of glass is one-half. inch. The side frames and top frame are two inches Wide while the bottom frame is three inches wide.

In using the rule, these dimensions are used along with-the overall length and Width-of the" entire window. As shown the overall length of the window is 72 and its width is 48".

The rule, as best shown in Figure 2, consists of a four-sided bar or shaft 2, marked at both of its ends with numerals from 3 to 10, arranged in pairs as shown to indicate the particular face of the rule to be used in calculating the sizes of the panes of glass-which determine the number of divisions. Each face is provided with a scale extending from one division number at one end to its companion number at the opposite end as indicated at 3 and 4 for the divisions 4' and 3 respectively. These scales are graduated and marked to represent the overall length and width P in inches of the outside dimensions of the entire Window being dealt with, including the top, bottom and side rails of the sash. Intermediate the two scales 3 and 4 and extending throughout the length of the rule is another scale indicated at 5. This scale is graduated in inches and fractions thereof for determining the length and width of each pane of glass to be used in the window when a number of divisions is known.

Entirely surrounding the four sides of the rule and slidably mounted thereon is a frame, 6, formed with an elongated aperture or sight opening 7 for viewing the scale 5 above referred to. Arranged alon both longitudinal edges of the sight opening is a scale 8 graduated and marked to indicate the thicknesses of the bars 9 (see Fig. 1) for separating the panes of glass. The frame 6 is formed with an elongated and reduced extension Ill terminating in an end portion II also slidably embracing the four sides of the rule. It will be noted that both ends of the frame are marked to correspond with the division numbers at the opposite ends of the rule. The extended portion Ill of the frame 6 is provided with scales l2 and I3 cooperating with the scales 3 and 4 respectively. The scales [2 and I3 are graduated and marked to indicate in inches the total amount of outside wood or sash surrounding the window. For example, as shown in Figure 1, the combined width of the top and bottom rails is 5 inches, while the combined width of the side rails is 4 inches.

In operating the rule to determine the length and width of each pane of glass, the builder chooses a bar of predetermined width, say for example one-half inch as shown in Figure 1. To then determine the width of each pane of glass and knowin the number of divisions desired, the operator moves the frame 6 along the rule until the number 4 in'the scale l2 on the extended portion 10 of theirame registers with the length of the sash. scale I3A in registry with the mark 16, the opernumber 48 (width in inches of the sash) in the scale 3. The number 4 in the scale l2 indicating the total width of the side rails of the sash and the numeral 48 in the scale 3 indicating the total width of the window. Since, as previously stated, the operator knows the width of each bar he then refers to the scale 8 and in this instance where the width of the bar is one-half inch it will be noted that the one-half inch mark at 14 in the scale 8 registers with the mark 15 in the scale 1, thus indicating to the operator that the width of each pane of glass is 10% inches. Since the operation of the frame along the rule is the same for all the divisions, a description of one operation will sufiice for all.

The operation of the rule in determining the length of each pane of glass is the same as that in determining the width. Since the number of lengthwise divisions are known, which in this case is as shown in Figure 1, the operator uses the frame and scales thereon in connection with the scale relating to the 5 division edge of the rule. As illustrated in Figure 6, the number 5 on the scale I3A representing the combined thickness in inches of the top and bottom rails of the sash, is moved into registry with the mark 16 in the scale 43 representing the 72-inch overall With the number 5 in the ator again refers to the scale 8 and the one-half inch mark 143 thereon which indicates as aforesaid the width of the separating bars. By observing the alignment of the mark 143 with the 13 mark on the scale 5B, he then determines that the length of each pane of glass is 13 inches.

With reference to Figure 5 it will be observed that divisional calculations may also be made through the use of the scales 3, 4 and 5 without the use of the sliding frame 6 and the scales 8 adjacent to the opening 1 therein, it being remembered that said scales in the frame are used for determining the length or width of the pane of glass when the width of the separating bars 9 are known. Said scales 3, 4 and 5 may be used to determine the number of pieces into which a panel of a given width or length may be divided. For example, if a panel is 21 inches wide it will be seen that if three divisions are desired, each division will be 7 inches, since the '7 inch mark as shown registers with the number 21 in the scale 4. So, also, if the panel is 28 inches wide or 28 inches long and four divisions are required, it will be seen by referring to scale 5 that the 7 inch mark registers with the 28 inch mark in the scale 3. The graduations in the scales 3 and 4 are consecutively numbered, as, for example, at 17 in the scale 3 and at 18 in the scale 4 and the marking 1'7 in scale 3 represents 49 inches and likewise the graduations 19 in the scale 3 represents 29inches, thus if an operator wishes to determine the width of four divisions ina panel 29 inches wide, he would refer to thegraduation 19 which is in alignment with the 7% inch graduation in the scale 5 thus indicating that each division would be 7 inches wide in a panel 29 inches wide. The same relation exists between all of the scale around the four sides of the rule in a variety of graduations, of course, so that the various divisions from 3 to may be calculated.

Although I have shown and described the invention as a four-sided rule in compact form, it is to be understood, of course, that thevarious scales carried by the four sides ,of the rule may be laid out in fiat form adjacent to and parallel with each other to cooperate with a frame slid-- able along the scale and provided with all the graduations shown and described in connection with the frame 6 previously referred to.

While I have shown a particular form of embodiment of my invention, I am aware that many minor changes therein will readily suggest themselves to others skilled in the art without departing from the spirit and scope of the invention. Having thus described the invention, what I claim as new and desire to protect by Letters Patent is:

1. A calculating device comprising a rule having two alined cooperating scales, one of said scales representing fundamental units of measure and the other scale representing a multiple thereof, said multiple representing the number of subdivisions to be made of desired quantity, and a slide having two juxtaposed scales fixed with relation to each other and movable with respect to said first named scales, one of said juxtaposed scales representing the magnitude of the quantity interposed between each subdivision and cooperating with the scale representing fundamental units, the other of said juxtaposed scales representing the total magnitude of the quantity defining the limits of the quantity to be subdivided and cooperating with the scale representing a multiple of said fundamental units.

2'. In a calculating device, two alined cooperating scales, one of said scales representing fundamental units of measure and the other scale representing e, multiple thereof, said multiple representing the number of subdivisions to be made of a desired quantity, and two juxtaposed scales having a common zero point and movable with respect to said first named scales, one of said juxtaposed scales representing the magnitude of the quantity interposed between each subdivision and cooperating with the scale representing fundamental units, the other of said juxtaposed scales representing the total magnitude of the quantity defining the limits of the quantity to be subdivided and cooperating with the scale representing a multiple of said fundamental units.

3. In a slide rule, two alined cooperating scales defined in a system of linear measure, one of said scales representing fundamentahunits of said measure and the other scale representing a multiple thereof, said multiple representing the number of subdivisions to be made in a desired length, and two juxtaposed scales fixed in relation with each other and movable with respect to said first named scales, one of said juxtaposed scales representing the width of one of the-dividing members separating the lengths subdivided andcooperating with the scale representing fundamental units, the other of said juxtaposed scales representing the combined width of terminal members defining the total length to be subdivided and cooperating with the scale representing a multiple of said fundamental units.

4. In a device for calculating the subdivided dimension of a multi-divisioned length, two alined uniformly graduated cooperating scales defined in a system of linear measure, one of said scales representing fundamental units of said measure and the other scale representing a multiple thereof, said multiple representing the number of subdivisions to be made in a desired length, and two juxtaposed scales having a common zero point and movable with respect to said first named scales, one of said juxtaposed scales representing the width of one of the dividing members separating the lengths subdivided and cooperating with the scale representing fundamental units, the other of said juxtaposed scales representing the combined width of terminal members defining the total length to be subdivided and cooperating with the scale representing a multiple of said fundamental units.

5. In a device for calculating the subdivided dimension of a multi-divisioned length, a rule having disposed thereupon two parallel uniformly graduated scales extending lengthwise of said rule, the graduations in both of said scales being in alignment one with the other, said scales being defined in a system of linear measure, one of said scales being numbered in fundamental units of said system of linear measure and the second of said two scales being numbered in a multi ple thereof, said multiple being the number of subdivisions required of the length to be divided, and a slide embracing said rule and movable longitudinally thereover, said slide having disposed thereupon in juxtaposition two uniformly graduated scales in fixed relation one to the other and both scales being defined in the same fundamental units of linear measure as said rule, one of said slidable scales being graduated to define the width of one of the dividing members defining the lengths subdivided and cooperating with the first of said two scales of said rule, the second of said slidable scales being graduated to indicate the combined width of the terminals defining the total length to be subdivided and cooperating 7. In a device for calculating the subdivided dimension of a multi-divisioned length, two alined cooperating scales defined in a system of linear measure, one of said scales representing fundamental units of said measure and the other scale representing a multiple thereof, said multiple representing the number of subdivisions to be made in a desired length, and two juxtaposed scales fixed in relation with each other and movable with respect to said first named scales, one of said juxtaposed scales being graduated in units of length greater than said multiple scale by an integer equal to the number of dividing members separating the lengths subdivided for representing the width of one of said dividing members, said scale cooperating with the scale representing fundamental units, the other of said juxtaposed scales being graduated in units of length identical with said multiple scale for representing the combined width of terminal members defining the total length to be subdivided and cooperating with the scale representing a multiple of said fundamental units.

HENRY Y. GILES.

Name Date Keufi'el May 10, 1898 Number OTHER REFERENCES fGraphical and Mechanical Computation, by

Joseph Lipka, published by John Wiley and Sons of New York in 1918; pages l-7, inclusive. 

